Merit Abrasives 08834172089 Psa Disc 8 in 50 Grit

Product Description

The MERIT ABRASIVES 08834172089 is a pressure-sensitive adhesive (PSA) disc designed for material removal and surface preparation on rotary sanding tools. Built with aluminum oxide abrasive on a flexible cloth backing, this coarse-grade disc delivers aggressive cutting action suited for shaping, blending, and stock removal on metal, wood, and composite surfaces. The disc measures 8 inches in diameter and carries a 50-grit rating, placing it firmly in the coarse range for rapid material removal. The PSA backing mounts directly to compatible disc pads without additional fasteners, making disc swaps quick during production work. At 0.02 pounds, it is lightweight and adds minimal inertia to the tool setup.

This PSA disc is suited for use in fabrication shops, metalworking facilities, woodworking operations, and general industrial maintenance environments. It is a common consumable for grinding, weld blending, and rough-surface leveling tasks. The flexible cloth backing conforms moderately to curved or irregular workpiece profiles, making it useful on contoured parts where rigid disc materials would lose contact. No vacuum holes are included, so it is intended for standard non-vented disc pads. Sold individually, this disc is appropriate for low-volume use or as a replacement unit in existing abrasive programs.

Key Features

• 8-inch diameter fits standard PSA rotary disc pads
• 50-grit aluminum oxide abrasive for aggressive, coarse-grade material removal
• Flexible cloth backing conforms to moderately contoured surfaces
• Pressure-sensitive adhesive mount for fast, tool-free disc changes
• No vacuum holes — compatible with solid, non-vented backing pads
• Black disc color for easy identification in multi-grit setups

Compatibility

Designed as an OEM-style consumable replacement for standard 8-inch PSA rotary disc pads used in metalworking, woodworking, and general fabrication applications.

Installation Notes

Installation is performed by trade professionals or experienced operators working with rotary sanders and disc grinders. Before mounting, ensure the tool is powered off and the backing pad surface is clean and free of adhesive residue from previous discs. Peel the PSA liner and press the disc firmly and evenly onto the backing pad to ensure full adhesion and eliminate air pockets. Follow all applicable workplace safety standards and tool manufacturer guidelines for maximum disc speed ratings before operation.